How severe is CVE-2012-6125?

CVE-2012-6125 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2012-6125 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6125?

CVE-2012-6125 affects Call-cc Chicken. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-6125?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-6125 published?

CVE-2012-6125 was published on 2019-10-31 and last updated on 2026-06-16.

CVE-2012-6125

CVE-2012-6125 is a critical-severity vulnerability in Call-cc Chicken with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Call-cc Chicken
Published: 2019-10-31
Last modified: 2026-06-16

Description

Chicken before 4.8.0 is susceptible to algorithmic complexity attacks related to hash table collisions.

Frequently asked questions

What is CVE-2012-6125?: Chicken before 4.8.0 is susceptible to algorithmic complexity attacks related to hash table collisions.
How severe is CVE-2012-6125?: CVE-2012-6125 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2012-6125 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6125?: CVE-2012-6125 affects Call-cc Chicken. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-6125?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-6125 published?: CVE-2012-6125 was published on 2019-10-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:call-cc:chicken:*:*:*:*:*:*:*:*

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